IAA RAS IAA Minor Planet Database

450263 (2003 WD158)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4091625420 ± 1.52e-08
Semi-major axis (a)1.4263477944 AU ± 1.46e-09
Inclination (i)16.72793841° ± 7.91e-07
Long. of Asc. Node (Ω)92.19813289° ± 5.62e-07
Arg. of Perihelion (ω)102.36816257° ± 3.09e-06
Mean Anomaly (M)248.55192838° ± 1.20e-06
Mean Motion (n)0.5785942639°/day ± 8.91e-10
Perihelion dist (q)0.84273971 AU ± 2.17e-08
Aphelion dist (Q)2.00995588 AU ± 2.18e-08
Orbital Period1.70348437 yr ± 2.62e-09
Physical Parameters
H (abs. magnitude)18.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.544″
Uncertainty0
Orbit TypeApollo
MOID0.046080 AU
Observations Used5311
Radar Obs Used4
Oppositions7
Arc Total2003-2026
First Observation Used2003-11-30
Last Observation Used2026-01-22
Observations (10017)
Date Type RA Dec Mag Band Observatory
2021-06-28 18:32:20 V 18 42 50.87 -37 31 24.9 14.7 V 247
2021-06-28 18:32:20 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:24 V 18 42 50.87 -37 31 25.2 14.7 V 247
2021-06-28 18:32:24 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:28 V 18 42 50.87 -37 31 25.6 14.8 V 247
2021-06-28 18:32:28 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:32 V 18 42 50.87 -37 31 26.1 14.8 V 247
2021-06-28 18:32:32 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:36 V 18 42 50.86 -37 31 26.3 14.7 V 247
2021-06-28 18:32:36 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:40 V 18 42 50.84 -37 31 26.6 14.6 V 247
2021-06-28 18:32:40 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:44 V 18 42 50.82 -37 31 27.1 14.6 V 247
2021-06-28 18:32:44 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:48 V 18 42 50.81 -37 31 27.3 14.6 V 247
2021-06-28 18:32:48 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:52 V 18 42 50.79 -37 31 27.4 14.6 V 247
2021-06-28 18:32:52 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:32:56 V 18 42 50.78 -37 31 27.7 14.6 V 247
2021-06-28 18:32:56 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:00 V 18 42 50.77 -37 31 28.0 14.6 V 247
2021-06-28 18:33:00 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:04 V 18 42 50.76 -37 31 28.2 14.6 V 247
2021-06-28 18:33:04 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:08 V 18 42 50.75 -37 31 28.6 14.6 V 247
2021-06-28 18:33:08 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:12 V 18 42 50.74 -37 31 28.7 14.6 V 247
2021-06-28 18:33:12 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:16 V 18 42 50.74 -37 31 28.9 14.7 V 247
2021-06-28 18:33:16 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:20 V 18 42 50.73 -37 31 29.2 14.7 V 247
2021-06-28 18:33:20 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:24 V 18 42 50.73 -37 31 29.6 14.8 V 247
2021-06-28 18:33:24 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:28 V 18 42 50.71 -37 31 29.9 14.8 V 247
2021-06-28 18:33:28 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:32 V 18 42 50.70 -37 31 30.2 14.8 V 247
2021-06-28 18:33:32 v 1 055.57625 -21.19295 – – 247
2021-06-28 18:33:36 V 18 42 50.71 -37 31 30.4 14.8 V 247
2021-06-28 18:33:36 v 1 055.57625 -21.19295 – – 247
2021-06-28 23:46:45 C 18 42 22.18 -37 52 15.3 – q Y00
2021-06-28 23:48:17 C 18 42 22.01 -37 52 23.1 – q Y00
2021-06-28 23:49:42 C 18 42 21.85 -37 52 29.3 – q Y00
2021-06-29 08:16:22 V 18 41 32.95 -38 25 53.3 15.2 V 247
2021-06-29 08:16:22 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:17:02 V 18 41 32.96 -38 25 56.9 16.0 V 247
2021-06-29 08:17:02 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:17:41 V 18 41 32.83 -38 25 59.3 15.6 V 247
2021-06-29 08:17:41 v 1 201.91295 +21.37100 – – 247
2021-06-29 08:19:40 V 18 41 32.68 -38 26 07.0 15.8 V 247
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-06-12 04:20:00 330282.96 0.04 Hz 8560 -14 -14
2021-06-12 04:40:00 57906827.55 1 us 8560 -14 -14
2021-06-12 14:10:00 270117.786 0.04 Hz 8560 -14 -14
2021-06-12 15:10:00 56587103.74 0.125 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)